Clocks, Watches & Jewellery

In 1657, the 10-year-old Dutch orphan Christiaan Reijnaert was apprenticed to clockmaker Salomon Coster in The Hague. It was a momentous time for Coster: he is credited with building the first pendulum clock, incorporating the invention by Christian Huygens.

Sold at Bonhams last week, the emerald in this Art Deco brooch is a clue to the remarkable life of its one-time owner Lady Hood.

A poignant background story or strong suggestion of original ownership greatly adds to the appeal of early jewellery finds often unearthed by metal detectors

Interest in glyphic art, which reached its collecting apogee during the Grand Tour collecting, is resurgent once more.

Pictured here is a Renaissance ring set with five point-cut diamonds – typical of the most opulent jewels produced in 16th century Venice. It forms part of the 35-piece private collection of precious stone dealer Benjamin Zucker that will be offered for sale at Les Enluminures in New York from October 24-November 9.

Though his works are now revered and highly valued in his native land, Edgar Allan Poe spent most of his writing life in debt. There were, however, a few months in the early 1840s when, while working in Philadelphia as an editor and contributor on 'Graham’s Magazine', he enjoyed some short-lived financial success.

Offered with an a/f catalogue caveat, this early 20th century marine chronometer, below, quadrupled expectations at Chichester saleroom Henry Adams (20% buyer’s premium).

Coloured diamonds aside, rubies command higher prices per carat than any other gemstone. Graded using the traditional criteria of the four Cs (colour, cut, clarity and carat weight), they are also evaluated on the basis of geographic origin with the stones from Burma commanding the most interest.

This Arts & Crafts-style necklace, alternating moonstone and chalcedony cabochons set in scrolling silver mounts, is the unmistakable work of the London jeweller Sybil Dunlop (1889-1968).

A sale at Gildings in Market Harborough this month included 10 lots from the family of Albert and Nora McGill – influential industrialists credited with a key role in the founding of Russia’s cotton mill industry in the mid-19th century.

MADAM: I refer to the article (ATG No 2410) on a necklace and bracelet composed of 1st and 2nd century Roman gold Aurei coins said to have been commissioned by the Emperor Napoleon as a gift for his sister the Princess Pauline Borghese.

A late Victorian diamond cluster necklet with an estimated total weight of 14.4cts sold in its original fitted case for £10,500 at Richard Winterton (20% buyer’s premium), Lichfield.

The jewellery sale at Woolley & Wallis in Salisbury on October 30 includes over 60 engraved gems – both ancient and Neoclassical – from several single-owner collections. A selection of rings is pictured here:

Among the best known of Castellani’s essays in the archaeological revival style is this ‘Etruscan’ gold and glass grapevine pattern necklace.

Oktoberfest, the world’s largest volksfest held annually in Bavaria in September and October, is just one reason to travel to Germany in the autumn. Another is the plethora of auctions held in what is traditionally a busy season for the country’s salerooms

Thousands of items are available to buy from dealers online. Here we pick out one that caught our eye this week.